5⼀9÷(6-4⼀11-7⼀11)简便方法怎么算?

2025-04-04 01:29:20
推荐回答(1个)
回答1:

=5/9÷[6-(4/11+7/11)]
=5/9÷[6-1]
=5/9÷5=1/9